Scrubbing-machine.



M. .I. KATT. SGRUBBING MACHINE.

APPLICATION FILED APR. 13, 1912.

1,055,470. a Patented Mar.11,1913;

wi/hmawco UNITED STATES PATENT OFFICE.

MARTIN J. KATT, OF CHICAGO, ILLINOIS.

SCRUBBING-MACHINE.

To all whom it may] concern:

Be it known that I, MARTIN J. KATT, a

ing to be a full, clear, and exact description of the invention, such aswill enable othersskilled in the art to which it appertains to:

make and use the same.

This invention relates to scrubbing ma-. chines, and it moreparticularly relates to* a machine for scrubbing printing type.

It is well known that, in the process of manufacturing certain classesof printing type; for instance, wherein the type plates are cast fromiron, steel or from other metal,

in sand molds; it becomes necessary to re-.

move the sand or other rough coating from the surface of the type platesbefore the same can be properly electro-plated, and therefore an objectof the invention is to provide an improved machine onto which one ormore printing type plates may be secured, and whereby said plates may berotated on a horizontal plane, while one or more brushes are caused toreciprocate across the surfaces of said plates, for cleaning the same.

A further object of the invention is to provide a machine of thischaracter in which all of the working parts are cooperatively related.

A still further object is to provide a ma chine of this character whichis simple of construction, easy to manipulate and thoroughly eflicientin operation.

Other objects and advantages may be recited hereinafter.

In the accompanying drawings which form a part of this application,Figure 1 is a side elevation view of the machine which embodies myinvention, and, Fig. 2 is a transverse vertical section, on the line 22of Fig. 1.

Referring to the drawings in which similar reference numerals designatecorresponding parts throughout the several views, the main frame of themachine is represented by the numeral 5. This frame supports a bed plate6 provided with a circular track on which is supported a work-table 8,through the medium of ball-bearings9. The work-table is preferablyprovided with the usual T slots 10, into which may be insertedSpecification of Letters Patent.

Application filed April 13, 191-2.

Patented Mar. 11, 1913.

Serial No. 690,523.

bolts, not shown, for fastening a wooden base 11 onto the work-table,and onto this base may be secured an electro-type plate 12, by screws,not shown, or by other proper means.

Secured to the frame 5, on a plane above the work-table, is a pair ofparallel trackmembers 13, by means such as bolts 14. These traclcmembersare preferably provided with V-shapecl grooves 15 in their top surfaces,in which are movably seated guides 16, the latter constituting portionsof a cross-head 17. This cross-head extends across the machine bed 6 andis adapted to travel laterally across the work-table, along thetrackmember 13.

A crank-shaft 18 is carried by the frame 5 and carries a crank 19 whichis pivotally connected with the cross-head 17 by means of a connectingrod 20. The crank-shaft 18 also carries a main driver wheel 21 and asub-driver wheel 22. The main driver wheel may be connected with anyproper source of motive power, through the medium of a belt 23. Thesub-driver wheel is connected with a worm-gear 24, through the medium ofa worm 25, shafts 2-6 and 27, wheels 28 and 29 and a belt or chain 30.The worm-gear 24 is carried by a vertical shaft 31, which is rotatablyseated in a bearing 32 and in fixed relation to the work-table 8.

The cross-head 17 is provided with a vertical threaded bore, in which isseated a correspondingly threaded brush carrier 33. The brush carrier isprovided with a crankhandle 34, by which the brush carrier may berotated, and thereby raised and lowered with relation to the cross-headand to the work-table. The brush carrier is also provided withhorizontal apertures 35, which are adapted to register, alternatively,with a horizontal aperture in the cross-head 17 and to receive a pin 36,for holding the brush holder and brush in adjusted position.

While, in practice, I may employ several brushes and brush holders, likethe one described, I herewith disclose but one. Iprefer to clamp thelateral brush holders 37 to the cross-head 17, and in laterallyadjustable relation thereto, by means of set-screws 38. The cross heads43 and tenons 41 may be provided with any proper means of verticaladjustment, as for instance, pins 39, each extending through an aperturein the slotted shank 40 and through one of the several holes in thetenon 41, said tenon being fitted into the slot 42. \Vhen it is desiredto remove the brushes from the holders 37, the pins 39 may be removed,and the tenons 41 may then be taken out of the slots.

The brushes may be of any proper con struction, and are preferably heldby the clamps 43, which comprise the depending arms 44, having retaininglugs 45, for engaging the lower lateral edges of the brushes. Set-screws46 are provided for securing the brushes in the holders.

By thus providing three brushes in adjustable relation, all sizes ofelectrotype plates may be operated upon.

It will be seen that the machine herewith described and shown is fullycapable of attaining the foregoing objects.

I do not limit my invention to the exact details of construction,combination and ar-' rangement of parts herewith disclosed; but, myinvention may only be limited by a rea. son-able interpretation of thefollowing claim.

'What I claim is:

In a scrubbing machine, a frame, a sta-' tionary base plate supported bythe frame and having a journal bearing therein and a a table having avertical shaft journaled in said bearing and having a circular trackregistering with the first said circular track and being supportedthereby through the medium of suitable bearing elements, ahori- Zontallymovable member above the table, brushes carried by said member andadapted to be moved thereby over the surface of work on the table, meansfor moving the brush carrying member, and means coacting with the firstsaid means for rotating the work table.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

MARTIN J. KATT.

lVitnesses SIMoN E. Hon, PAUL L. HAERTEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, I). 0.

